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net/http: add a test for an empty ServeMux
Make sure a ServeMux with no patterns is well-behaved. Updates #61410. Change-Id: Ib3eb85b384e1309e785663902d2c45ae01e64807 Reviewed-on: https://go-review.googlesource.com/c/go/+/530479 Reviewed-by: Damien Neil <dneil@google.com> Run-TryBot: Jonathan Amsterdam <jba@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
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@ -33,8 +33,6 @@ import (
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"golang.org/x/net/http/httpguts"
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"golang.org/x/net/http/httpguts"
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)
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)
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// TODO(jba): test
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// Errors used by the HTTP server.
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// Errors used by the HTTP server.
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var (
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var (
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// ErrBodyNotAllowed is returned by ResponseWriter.Write calls
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// ErrBodyNotAllowed is returned by ResponseWriter.Write calls
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@ -118,6 +118,20 @@ func TestFindHandler(t *testing.T) {
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}
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}
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}
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}
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func TestEmptyServeMux(t *testing.T) {
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// Verify that a ServeMux with nothing registered
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// doesn't panic.
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mux := NewServeMux()
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var r Request
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r.Method = "GET"
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r.Host = "example.com"
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r.URL = &url.URL{Path: "/"}
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_, p := mux.Handler(&r)
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if p != "" {
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t.Errorf(`got %q, want ""`, p)
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}
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}
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func TestRegisterErr(t *testing.T) {
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func TestRegisterErr(t *testing.T) {
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mux := NewServeMux()
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mux := NewServeMux()
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h := &handler{}
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h := &handler{}
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